Austin l



iJan. 10, 192s.

A. L. WERTZ PUMP Filed March 21. 1927 Patented Jan. 10, :19278.

STATES,

PATENT OFFICE.

" Aus'rrivr. wnivraxon vkLAKEWoon, cino.

Application mea March 21, 1927. serial Np. 176,919.

vide fa pump of the 'type referred to in which the pump head is cast in one piece and is provided Vwith an integral inwardly projecting portion yon one side thereof having a vertically extending opening` therein throughfwhich extends the piston rack and which is provided 'with a horizontally extending bore or passageway communicating with the opening at its inner end and in wliichris journaled the pinion `for actuating v the rack, the projecting 'portion constituting 13 through which projects the valveY stem 14. Rigidly secured to the piston 8 is ing a guide for the rack as well as a bearing-forthepinion` y* f f A- 4rFurther and morevlimited objects ofthe invention will appear as the description* proceedsrand by reference to the accompany ing drawing in'which Fig.= 1is a verticalsectional view of a pump constructed in; ac,

cordance with my invention;-Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. 1 and Fig. 3 is a horizontalsectional view on tlie line 3-3 of Fig. 1.

Referring now to the drawings the numerall design'atesthe` pump base, 2 the pump cylinderand 3 the pump head which is shaped as shown most clearly in Fig. 1 and provided with a discharge pipe 1 leading outwardly therefrom. The base inember 1 is somewhat conical injsliape and arranged therein is 'a check valve 5 which is held in place by a kplate l6 detachably secured to the base member by a screw 7. Arranged within the pump cylinder 2 is a piston 8 having an opening 9 therein adjacent oneside. Arranged over the opening.:

9 is a check valve 10 which is secured tothe piston by means of a plate 11 which is detachably secured to the piston by a screw 12. The plate 11 is provided with anvopena'rack 15 `which -projects lupwardly there-v from as shown in Fig. 1.y Cast integral with one side ofthe head Slis an inwardly eX-g tending projection'l'v having therein a vertically extending opening 17 which is preferablyrectangular in shape. The inwardly extending projection 16l is valso provided with a horizontallyfe'xtending bore or pasj, i

sageway 18 which communicates with the opening 17 at its inner end. The rack 15 extendsthrough the opening 17 asshownA most clearly in Fig. 2 and is guided therein. Journaled in the bore or passagewayv 18 is a pinion 19 having teethon its inner end .disposed so asto operatively engage the teethjoii the' rack 15.- The outer'end ofthe bore 1,8. is slightly-enlarged and threaded 'as shown at 20 and the pinion 19 is provided with an annular shoulder 21,'thepurpose of which will hereinafter' appear. Secured to the outer end of the pinion 19 is a crank 22 which is non-rotatably securedk to the pinion by means of a nut 23. A packing 24 and gland nut-25 is screwed'into the outer end of the bore 18 and seals this opening and also holds thepinion 19 in E,operative engagement with the rack. The packing Qais held into engagement withI the shoulder 21 on the pinion 19 by means of the gland nut f 25and serves to 'hold Vthe pinion against endwi'se displacement.L Y,

It will thus be seen that the inwardly projecting member l16A constitutes a guide for the piston rack and a journal for the pinion. The advantage of this construction is thatit is not necessary toprovide oppositely disposed-joi'irnals inthe headf and atk the Sametime the rack is always held in operative engagement with the pinion. This construction materially vclieapens the device and better adapts it for quantity production at low cost.

If desired. the base member 1 and head 3 may be connected by means of tie rods 26' for the purpose of securely clamping the same to the cylinder 1.l However, other means may be adopted for connecting the head and base member to the cylinder. -Various changes may be made in the details of my construction without departing from the spirit of my invention and I wishk my invention to be limited only in accordance with the lscope ofthe appended claims.

It will now be clear that I have provided xtelfbng Opening ,extending therethrough and a horizontally extending .bore leading from the outside of said hollow head and communicating with said opening-.at its inii ,r ood, .d rook Y ooiiiiootod with1 said piston oil-flortondins through' said opening, o pinionjoiirnaled in said bore. and'havingits inner Aend disposed yin operative ,engagement lwith Saidlooliild modus t'oroporating said pinion to reciprocate said piston,said projection constitnting a guide jfor said krack and a hearing for said pinion.

2. ineasnring and Adispensing pump comprising apunip cylinder having a-,valved piston therein, `a base ,rnembersecured tothe loworoiid ofooid pump oyliiidor,.o- Voltooi piston working .in said cylinder, ahead secnredtoithe supper end ofsaid-V cylinder and having, a dischargeoutlet leading therefrom, saidhead having an rinwardly,extending intoeral projection on one side thereof, said projeetionhavinga vertically diSpQSed Opens ingl extending therethrough anda horizontally disposed bore o r `passageway communieating with said opening at :its inner end leading to the outsideot `said head, a piston rack vhaving .its llower end `secured to said piston and extending upwardly throughsaid Opening and e guided therein, ,a ,pinion ournaled4 in said bore-,or passageway and havine its inner ond disposed in operati-ve gesondert with `Said rook, moonsrootriotina ibo lateral movement of. said pinion@ and means for,operating said pinion to ,reciprocate said piston, said projection constituting a guide for said piston rack and a bearing for said pinion. Y

'pump of the vcharacter described comprising a pump cylinder, a base memloer secured to :the lower end of said pump cylinder, a head securedto the upper end of said pump cylinder and having a discharge outletleading therefrom, said head having an ,jnwardlvfejfgtending projection cast integral therewith, said projection having a verticallydisposed rectangular opening therein and .an annular horizontally disposed boro communicating with said opening at its inner end and leading through said head, a valiiedpiston within saidpump cylinder, a raoloconiieoted .with seid piston, said mok beingrectangulor in Crosssootion .and tending through Said rectangular opening and ,guided therein, a `pinion ioiirndlod in Said .boro and boring itsA innorolid.disposed in operativo engorgement. with said rook, means for limiting the end thrust otsaid pinion and means for operating Asaidpinion to reciprocate Said piston, Said proiootion Constitiitingaguide for Said ,rack aiidfhol-ding tlio `Senio in operative engagement with said pinion, said boreconstituting a journal yforsaidpinion.

d. A ,pump of ,the Class described loom-` prising agpump cylinder, aliase member secured to the lower ond of Said Cylinder, ,a headsecured Ito the upper end of saidcylindo/r and having a disoliflrgo outlet load" inf; therefrom, a valved vpiston .workingfn Said cylinder, a giiido member -projooting from one sidev of said headand liavinga 4vertically extending opening therein, a piston raclieconnected with said piston at vits lower end and .projecting upwardly ,through sai-deepening and guided therein, e pinion joiirnaled in said kguide .member and dis.- posed in operative ,relation to said rack, and nio-ans .for operating said .pinion to` recprooete ,said piston.

In testimony whereof, I-.hereunto afiX ,my

signature.

" AUSTIN WERTZ. 

